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Gets or sets whether the button is the cancel button.
Use this property to determine whether the button is configured as a cancel button.
Not supported by the *.ssjson format.
bool CancelButton { get; set; }
Property CancelButton As Boolean
IButton button = worksheet.Controls.AddButton(20, 20, 120, 24);
button.CancelButton = true;
bool isCancelButton = button.CancelButton;